Metric Unit Conversion Calculator Firefox

Metric Unit Conversion Calculator

Convert metric and imperial units instantly across 10 categories: length, area, volume, mass, speed, time, temperature, pressure, energy, and data.

Features & Capabilities

Metric Unit Conversion Calculator is a fast, offline unit converter for your browser. Convert between metric and imperial units across 10 categories: Length, Area, Volume, Mass, Speed, Time, Temperature, Pressure, Energy, and Data - instantly as you type.

Type a value into any unit field and every other unit in the category updates in real time. No convert button, no page reloads, no internet connection required for conversions. Switch categories with one click and clear all fields instantly.

Supported conversions include miles, kilometers, feet, inches and nautical miles; acres, hectares and square units; US and imperial gallons, cups, tablespoons and liters; pounds, ounces, kilograms and stones; mph, km/h and knots; Celsius, Fahrenheit and Kelvin; pascals, bars and PSI; joules, calories and kilowatt-hours; and digital storage from bits to terabytes.

With your consent, the add-on collects limited anonymous technical data (such as install date and consent status) to attribute installs correctly. You can review or change this choice anytime from the add-on's Settings page. Details are available in our Privacy Policy at metricunitconverter.com/privacy.

User Growth & Download Statistics

Manifest V3 Add-on Overrides search engine
By:
Metric Unit Conversion Calculator
Daily users:
1
Version:
1.3 Last updated: 2026-06-09
Version code:
6299889
Creation date:
2026-06-05
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • https://*.metricunitconverter.com/*
Content scripts matches:
  • metricunitconverter.com
  • *.metricunitconverter.com
Size:
39.12KB
Email:
su*****@metricunitconverter.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-14
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Metric Unit Conversion Calculator
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/metricunitconverter/
Email:
su*****@metricunitconverter.com
Website:
https://metricunitconverter.com/

Is Metric Unit Conversion Calculator Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Metric Unit Conversion Calculator requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High *** ****** ****** ********** ***** ***** ******** ******** ** ********* ****** ****** ******** *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Low ******* ****** ** *** ********* ******** ***********************
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Metric Unit Conversion Calculator is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best Metric Unit Conversion Calculator Alternatives

Here are some Firefox add-ons that are similar to Metric Unit Conversion Calculator: